Combined window screen and ventilator



A. ZEMAN.. COMBINED WINDOW SCREEN AND VENTILATOR.

v APPLICATION FILED APB- ]2, I918. 1,318,253. Patented Oct. 7,1919.

UNITED. STATES PA ENT OFFICE."

ANTON- ZEMAN, 0E PHILADELPHIA, PENNSYLVANIA.

coiunmnn'wmnow SCREEN Am) vENT'ILATore.

Specification of Letters Patent.

Patented Oct. 7,1919.

. Application filed April 12, 1918, Serial 170. 228.219.

T0 all whom it may concern} 5 Be 1t known that I, ANTON ZEMAN, a subjectof the Emperor of 'Austria-Hungary,'

(Czechs) residing at 34:41 N. Hutchinson street, Philadelphia, in thecounty of Philadelphia and State of Pennsylvania, have inventednew anduseful Improvements in Combined Window Screens and Ventilators,

of which the following is a specification.-

The invention relates to windows andwindow-ventilating devices, and hasfor an object to provide a combined screen and ventilator.

The invention comprehends among other features, the provision of adevice that may be eonstructediin conjunction with the construction of awindow, or which may be conveniently attached to any finished window,

i and which embodies an arrangement permitting of effective ventilationinto the room, and also supplying a screen, whereby the opening to theatmosphere can be screened to prevent the incoming of any insects,flies, mosquitoes, or the like, the screen of course being of anydesired mesh, and in fact, being capable of being made of a very finemesh to exclude any dust or dirt. Still tion, reference .is to be had tothe accompanying drawings, constitutii'ig a part of this specification,in which similar charactens of reference denote corresponding parts inall the views, and in whieh-- Figure l is a fragmentary front elevationof a window showing -my device applied thereto. v Fig. 2 is a verticaltransverse sectional 'view taken through the structure shown in Fig. l

Fig. 3. is an elevation of one of the adustable brackets for the"ventilator, and

Fig. 4 is an elevation of a modified form thereof. I I p Referring moreparticularly to the views, the numeral 10 indicates a window, comprisingthe usual sill 11- and side frame or casing 12, with a sash 13 mountedto slide therein, the same being the lower sash, the sash, furthermore,having on its lower bar 14 the usual metallic or other handle '15,

whereby the window sash can be raised or lowered. Arranged, upon thesill 11 is a horizontally disposedcasing 16 having side: uprights 17forming guides 18, and mounted upon each upright 17 is a relativelystationary bracket. 19. a

The casing 16 contains a spring-en aged shade roller 20 on which iswound curtain 21, which projects .up through a slot 22- in the casing,and can be pulled out as shown, the casing furthermore, having a secondshade roller 23 mounted therein, and on which is wound a screen 24adapted to pass through a slot 25 in the casing. A

we I

releasing handle 26 is arranged to project through a slot 27 in thecasing, said handle being connected with a s ring pressed pawl 27engaging a ratchet 2 b on the roller 23 in order to release the pawlwhen the screen thereof is. in open position, so that the spring of theroller will wind up the screen on the roller, and return the screen intothe casing, It being understoodthat the rollers 20 and 23 are of theusual spring type such the roller 20 is constantly acted upon by thetension of the spring to exert, a constant pull on the curtain21;,whereas, the roller 23 may be provided with-""a pawl and ratchetlock, so that when the screen 24 is pulled out and extended, it will belocked in'that position until the roller is' released by. the

action of the handle 26, whereby the spring operating on the roller willreturn the screen into the casing.

The ends of thedevice are of a fan-like nature and each. comprises amain arm 28 pivotallv.-connected at 29 .Wltll the bracket;

19- and having slidably connected therewith ioo 85 as the ordinary shaderoller, except that an arm 30, the upper end' of which -is provided witha notch 31'within which is engageable a rod 32 carried by the upperextremity of the curtain 21. Pivotally connected with the upper end ofthe arm 28, as shown at 33, is one end of a link 3 L'whieh has its otherend provided with'a clamping bolt 35 slidably engaged-within a verticalslot 36 formed in the bracket 19. Pivotally connected with the link 34,as shown at 37, is

i a series of slats 38 which have their other ends pivotally connected,as shown at 39,

I with the arm 28. The arm 28 is provided with a longitudinallyextending slot 40 through which ektend the pivots 39.

In the use of my device, we will assume that it is desired to raise thewindow sash 13 a distance for the purpose of ventilation, and in doingso it is desired that the open ing'fornied by the raising of the windowbe screened to prevent insects from coming into the room, and that theventilation will be such as will not cause a draft into the room, andfurther help to keep out any inclement weather, such as rain, sleet orsnow; to.

accomplish the result a ring 41 is attached to the center of a rod 42connected to the upper end of the screen 24, with the ends of the. rodoperating in the guides'18, and this ring is attached to the handle 15of the window sash, either before or after the window is raised, thuscausing the screen to be pulled out of the'casi'ng to-cover the openingmade by the raising of the window sash. The sides or bracket supports ofthe ventilator are now. swung, into open position to form end closures,as it were, and the ventilating curtain can now bepulled out of thecasing and the ends of the rod 32 will be looped over and arranged uponthe seats- 31 of the end closures or bracket supports.

the screen b itself, this can readily be ac- 'coinplished y leaving theend closures in folded positip n and the curtain within the casing,'and-v1'ce versa, the ventilating eurtain cangberais'ed into "openposition to'repose upfin the previously opened brackets,

an tIbe. thereby, while the screen "can be left. in the casing, so. that,the opening formed. by the raisingof the [window sash} will notbecovered; 1- v In the above reierred" to operation of pulling. the endsof the device -'rnte.extended position, it will be observed thatdownward movement of the clamping bolt 35 within the slot 36 will causethe arm 28 carrying the arm 30 to beswu'ng outwardly away from thebracket '19, the slot 40 in the arm 28 permitting the slats 38 to adjustthemselves properly It will therefore be observed that-the' angularinclination of the curtain 21 when its red 32 is engaged within thenotches31, may be readily varied so that the air entering through thewindow may be deflected upwardly at variable inclines. It will also beobserved that'the slidable adjustability of the arm 30 upon the arm 28permits upward extension of the curtain 21 to a greater or less extent.

Referring to the modified mm showe in- Fig; 4, it will be seen that theendsiof the" device are formed from a plurality of slats 43 pivotallyconnected, as shown ch14 and having their upper ends connected by pins45 riding within slots 46' whereby the slats may be extendcd or folded,as desired. The outermost slats, in this form are provided at theirupper -extremities with notches 47 within which" the rod 32 upon theupper end of the fountain I 21 maybe engaged. This form is not capableof the adjustment which may be .made with the preferred form.

though the slats may be folded to occupy but little space or extended toform on closures forthe ends of the device;

It will of course be understood that I do not limit myselfto theparticular construction set forth in the drawings; thatvarious slightchanges may be made'from' the descrip tion and drawings withoutdeparting'from the spirit of the invention, the scope of which isdefined in the appended claims.

I claim:

1. In combination with a window frame and a sash slidable therein, ahorizontally disposed casing on the sill of the window, a

spring roller within said casing, a curtain wound uponsaid roller andnormally contained within said casing, vertically extendlng bracketsconnected with said casing and provided with vertical slots, a pair ofarms p1votally connected at their lower ends with said brackets, linkspivotally connected with i the upper ends of said arms and having theirother ends provided with clamping bolts slidable within said slots, theupper ends of said arms being adapted for engagement with and retentionof the free.

edge of said 'curtain. v

2. In combination with a window frame,- a-caslng secured thereon,upstanding brackets connected with said :casing and provided each with avertical slot, an arm pivotally connected ,at its lower end with eachbracket, a second arm 's'h'clable upon'eaeh of said first named arms andhaving its upper end providedwith a notch, linkpivotally co'n'= nectedwith the upper end of each of said first named arms, a clamping bolt atthe other end of each link slidable through said vertical slot in theassociated bracket, each of said first named arms being provided,

with a longitudinally extending slot, a lurality of slats pivotallyconnected at t eir upper ends with said link and having their lower ends'pivotally and slidably connected within said last named slot, a springroller 10 journaled Within said casing, a curtain wound upon saidroller, and a rod upon the free end of said curtain and engageableWithin said notches.

In testimony whereof I aifix. my signature. 15

' ANTON ZEMAN.

